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Avis et commentaires pour d'étudiants pour Obtenir et trier des données par Université Johns-Hopkins

7,929 évaluations
1,311 avis

À propos du cours

Before you can work with data you have to get some. This course will cover the basic ways that data can be obtained. The course will cover obtaining data from the web, from APIs, from databases and from colleagues in various formats. It will also cover the basics of data cleaning and how to make data “tidy”. Tidy data dramatically speed downstream data analysis tasks. The course will also cover the components of a complete data set including raw data, processing instructions, codebooks, and processed data. The course will cover the basics needed for collecting, cleaning, and sharing data....

Meilleurs avis


2 mai 2020

This course provides an introduction of some important concepts and tools on a very important aspect of data science: cleaning and organizing data before any analysis. A must for any data scientist.


1 févr. 2016

Easy, mostly instructive Course. The Assignments and quizzes are quite good, and illustrates the lessons very well.\n\nSee the videos for general presentation, but use the energy on the excersizes.

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401 - 425 sur 1,274 Avis pour Obtenir et trier des données

par Andrew E

28 mars 2017

Very informative and moderately challenging final project

par Silvia J L H

24 janv. 2017

Really good course! It's basic before analyzing the data!

par Khaleel u r

27 juin 2019

Exceptional by my instructor of this course , very handy

par Aman U

30 janv. 2019

Just Amazing, one should take this course for betterment

par Ben H

10 mai 2018

Not the most exciting course but has been so, so useful.

par Alfredo A B

21 févr. 2016

Really nice course, practical exercises were very handy.

par Dale O J

26 juin 2018

This course was challenging, interesting and essential.

par caramirezal

22 juil. 2017

Good hand on course to learn manipulating data. Thanks!

par Philip A

17 août 2016

Excellent course. Challenging but extremely worthwhile.

par Chiara M

13 févr. 2016

Very challenging! which makes everything even more fun!

par David M

13 juin 2020

very good, the package tidyr and diplyr is very useful

par Kevin C

28 févr. 2016

I worked hard, and I learned a lot. This course convin

par Giovanni M C V

16 févr. 2016

Excellent course with great didactic. Congratulations!

par Raphael K

21 sept. 2020

Very good collection and exercises that are on-point.

par Olav N

28 juil. 2020

More practical examples of the topics would add value

par Sebastian R

19 sept. 2017

This course will let you manage your data as you want

par Ravindra B A

23 avr. 2017

Very informative.. specifically the 4th week project.

par Pieter O

11 janv. 2017

Great course! allowed me to learn a lot of new skills

par Stepas L

19 déc. 2016

Loved this course,best so far from all data science .

par Weiwei T L

25 mars 2016

Really helpful on a subject that's not often covered.

par Marijus B

20 mars 2020

great course, specially swirl programming exercises.

par Nishant R S

30 sept. 2019

Very deeply explained and very accurately organised.

par Avizit C A

8 oct. 2018

This is a very good course describing basic data ext


30 sept. 2021

Amazing course to gain knowledge about data Science

par Venkata S

13 mai 2020

Easy to learn and Assignments are a little bit hard